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Water
Science 6
Question | Answer |
---|---|
What is the chemical formula of water? | H2O |
The tightness across the surface of water is called what? | Surface Tension |
The combined force of attraction between water molecules and surrounding materials is called what? | Capillary Action |
What are the three main phases of matter? | solid, liquid, gas |
What phase is water in when it takes the shape of its container? | liquid |
What kind of charge does water have? | electrical |
What phase is water in when it has the most energy? | gas |
Water molecules packed tightly together and have a definite shape is in what phase? | solid |
Name the phase change - gas to liquid? | condensation |
Name the phase change - liquid to gas? | evaporation |
What is the property of water that causes it to stick to other water molecules? | cohesion |
When water sticks to other substances | adhesion |
Water dissolves most substances so it is considered a universal __________. | solvent |
Name the phase change - solid to liquid? | melting |
Name the phase change - solid to gas? | sublimation |
Name the phase change - liquid to solid? | freezing |
In this phase water molecules flow over and around each other | liquid |
Water molecules have the least energy in what phases? | solid |
What are water molecules made up of? | Two positive hydrogen atoms and one negative oxygen atom. |
Phase changes are a result of the absorption or release of _____________ energy | heat |